Closure for grease-guns.



Patented Aug. 27, 1912.

J. F. GRAVEN. y

INVENTOR 23 F11; WITNESSES w ir 1 lSTATE'S'f1PM-ENID OFM@ JAMES'F.CRA'V'EN, OF PIITTSBURGH, PENNSYLVANIA, ASSIGNOR TO CRAVEN ENGI- NEERINGCOMPANY, OF PITTSBURGH, PENNSYLVANIA, A 'CORPQRATION `:OIF

rnNNsYLveNIe. 'f

-invented a new and useful. Improvement in Closures for Grease-Guns, ofwhich the following is a specification.

This invention relates to closures for receptacles for containingliquid,seIni-1iquid pasty or semi-solid substances, and moreparticularly to closures for oil cans, greasev guns and the like, whichvare Vadapted or intended 'for discharging the contents of. thereceptacle through a spout or nozzle to oil or grease cups of machinesand the like. f

The object of the invention is to providel a closure for suchreceptacles so arranged that the act of attaching a removable spout tothe receptacle operates the closure to open the discharge orifice, whilethe act @tdetaching the spout operates the closure to close the'discharge orifice.

The invention comprises the construction and arrangement of scribed andclaimed In the accompanying drawing Figure 1 is a vertical sectionthrough a grease gun havparts hereinafter deyingany invention appliedthereto; Fig. 2 is a top view of the-closure in closed position; Fig.v 3is a sectional view showing a modi# iication; and Fig. 4 1s a section onthe line In the drawings the numeral 1 represents the body of a,receptacle of any kind for containing a. liquid, semi-liquid, pasty orsemi-solid substance. It is represented as a can of general cylindrical`form having the body formed of the tube l, show-n as made vided 'withof paste or paper board, but/(which may be madefrom sheet metal or othersuitable Inaterial, having a bottom' 2"and a head 3 of sheet metalsuitably secured to the ends of the body in any suitable way, such as bycrimping.

The head 3 is `provided with a tubular extension or rack- 4, whose end 5is protheY discharge orifice 6. Rotatably secured vto g the end 5 of theneck 4 is the closure 7 which is shown in the form of a cap or invertedcup loosely fitting over the neck`4.- and secured thereto Aby the rivet-8 or other means to keep it from separating from the sleeve butperspecifieation of Letters raten-1:. Application mearrebruary 14,191i.l serial Naleoaai.

`cap 7 has a of the'opening 1l bent inwardly .to form a' -cap 7 in bothdirections. metal at one edge of the opening 6 is proto rotate in thedirection of the arrow,4

CLOSURQE FOR GREASE-GUNS.

drical or side `portion 9 of the cap is provided with-A external screwthreads forv recelvin 'the correspondingly threaded inner end o thedelivery spout 10 which will be of such length and shape as to deliverthe substances tothe grease or Ioil cups of ma- 'chinery or like usraten-ted Aug. a7, isla.

-The end ot the cap 7 is provided with an opening 11 which in shape andsize preferably corresponds to the opening (iin the end of neck 4, andwhich is adapted to register with charge of the material from thereceptacle, or to be brought out of register with the opening 6 to closethe discharge oricef The portion of the metal at the edge tongueorprojection l2 extending into the opening 6 and adapted to contact withthe edges of the latter to limit thel rotation of the PreferablyI thevided'with a notch 13-to receive the projection 12 to insure thecomplete closin of the discharge orice in one position o? the cap7.

The parts are so arranged that the incre act of screwing the spout '10onto the cap 7, by the frictional engagement threads--at least at theend of the screwing down of the spring-causes the cap 7 Fig. 2, to bringt-he openings 11 vand 6 into ister, while the mere act of unscrewing thespout causes thecap 7 to rotate in the oppo site direction and cause thehead of the cap 7 tocover the opening 6 and hence close theldischargeorifice to prevent further'material from escaping from the receptacle,or dirt to enter the same.

Figs. 3 and 4 illustrateua'modification in which, the spoutI 10 isthreaded directly to the neck hit'of the receptacle and is provided withan inwardly extending tongue 14a which engages the tluted or roughenedperiphery 'of the cap 7a which is pivotaliy mounted on the end of saidneck, as in Fig.

Y1. In this modification when the spout is be ing screwed onto the neckthe tongue 14 engages with the periphery of the cap and rovrtate's thelatterto open thedischarge orifice,

and at the beginning of the unscrewing operation-the cap is rotated inthe opposite direc ytion to close the discharge, orifice The the opening6 to permit theA disof the" res- 17 provided with a cup leatherV 18or'thev like yielding or expanding means for forming a close fit in thereceptacle, andprovi ed witha threaded opening 19 in which worksa-threaded rod or screw 2O by the rotation of which the piston is causedto move lengthwise in 'the receptacle to force theA substance out of thesame. `The screw 20 is rotatably but endwise immovably secured to thebody in any suitable manner, such as Y20 by extending the same throughthe bottom 2, and providing the same with a shoulder or washer 22 on theinner side of the bottom,

so that said screw can rotate but' is endwisc immovable. The outer endofthe screw is 25 provided with a handle or key 23 with which to rotatesaid screw. It is obvious that when' the screwv 20 is rotated it causesthe piston or follower 17 to move endwise in the receptacle and forcethe substance out of the same. The piston or plunger is held against:rotation by frictional contact with the walls thereof, or Vby othermeans, such as a longitudinal projection or rib 24 in the receptacle,which engages a notch in the periphery of the piston or follower.

yVarious other means than thoseillustrated i may be provided for forcingthe substance.

f connected to the rece tacle and yendwise imout of the receptacle.'

vThe device described is intended princi- 40 pally for lubricatingpurposes, where the receptacle must be stored between successiveuses,-suchv as on automobiles,or where it is desirable to remove thespout for storing the receptacle. The deviceis however adapted to avariety of uses..

.WhatIclaim is: l. A receptacle having a neck provided witha dischargeorice, a member movably mounted on the receptacle for closing the`discharge orifice, a removable delivery spout adapted' t'o be placedover said neck and to `ble secured tp the receptacle and so arranged fthat the act of securing the delivery spout nieves said-member in 'one'direction on the receptacle to open the discharge orifceand the act vofdetaching the spout-moves it in reverse direction to close'l thedischarge orifice. 5

' Y, 2. vAreceptacle provided with a discharge orifice, a remoyabledelivery 4spout therefor,

a member forclosing the discharge orifice "mounted hfor limited movementon the outside of tlie receptacle, and a lostmotion connection betweenthe spout and closure con' ,65 structed and-arranged so that during the3. A receptacle provided with a discharge oriice, a removabledeliveryspout therefor, a closure for'thev discharge orifice connected to thereceptacle tohave limited rotative movement with relation thereto, and aconnection between the delivery spout and closure so arranged thatduring the a'ct- 'of at-` tachingV the delivery spout it rotates saidclosure to open the discharge orifice andalso moves with relationthereto unt-il securedto the receptacle andduring the act of detachingthe spout it rotates said closureto vclose the discharge orifice andalso moves` with relation thereto until detached.v

t. A receptacle rovided with a discharge orifice, a closure or saidorice connectedto the receptacle and arranged to havef limitedlrota-tive movement with relation thereto and endwise immovable thereon,and

aremovable delivery spouthaving threads for securing it to saidreceptacle, said spout being arranged to enga'ge the closure and 'causemovement thereof and also rotate With reference thereto, whereby theattachment and detachment of the spout rotates the closure on thereceptacle to respectively open and close the discharge oril'ice. i

, 5. -A receptacle provided with a discharge orifice, a closure for saidorifice rotatably movable thereon, an a removable delivery spout havinga threaded connection at its inner end for securing it to saidreceptacle and endwise movable thereon, said spout being arranged tofrictionallyl engagefthe closure, whereby the attachment and detachmentofl the'spout rotates the closure t0 respectively open and close thedischarge orifice,"and stops to limit `the rotation of the closure inboth directions.y K,

6. A receptacle provided with a discharge orifice, a closure rotatableand endwi'se immovable on said receptacle and' provided with threads,and a delivery spoutthreaded topengage said closure, whereby .theattachment and detachment of the spout rotates the closure torespectively open and close the discharge orifice.

7. A receptacle provided with a neck having a discharge orii'ice, aclosure movably mounted on the outside of the neck, a removabledeliver)7 spout'constructed for attachment to said receptacle andadapted to surround said neck and arranged upon attachment to ordetachment from said receptacle to frictionally engage and move theclo'sure'to open vand close the orilicesaid spout being rotatablymovable with relation to the closure.

8. A receptacle provided with a neck having a discharge orifice, aclosure rotatably mounted on and surrounding theneck, afremovabledelivery spout constructed for attachment to said closure and arrangedupon attachment to or detachment therefrom to frictionallyengage androtate the same to open and close the orifice, the spout being rotatably`movable with relation to the closure7 and stops for limiting movementof the closure in either direction. s

9. A receptacle provided With a discharge orifice, a closure rotatableon said receptacle and provided With threads, and a delivery spoutthreaded to engage said closure,vvhere by the attachment and detachmentof the spout rotates the closure to respectively open and close thedischarge orifice, and sto s to limit the rotation of the closure inbotii directions.

10. A receptacle provided with a discharge orifice, a cap rotatable onsaid receptacle and provided With an opening adapted to register withthe discharge orifice i and being provided With threads, and a deliveryspout provided With corresponding threads, whereby the attachment anddetachment of the spout to the cap rotates the latter to bring theopening in the cap respectively into and outV of register Wit-h thedischarge orifice.

' being lnto the opening Il. A receptacle provided with a dischargeorifice, a cap rotatable on said receptacle and provided with an openingadapted to register With the discharge orifice and provided Withthreads, a delivery spout provided with corresponding threads, wherebythe attachment and detachment of the spout to the cap rotates the latterto bring the opening in cap respectively into and out of register withthe dischargeorifce, and stops to limit the rotation of the cap in bothdirections.

12. A receptacle provided with a neck having a discharge orifice, aclosure rotatable on said receptacle and provided with an openingadapted to register with the discharge orifice, and a" delivery spoutsurrounding said neck and having a threaded connection for securing itto the receptacle and arranged to engage said closure, whereby theattachment and detachment of the spout rotates the closure to bring theopening therein respectively into and out of register with the dischargeorifice, and a projection on one of the parts extending in the other forlimiting the rotation of the closure in both directions.

In testimony whereof, I have hereunto set my hand.

JAMES F. CRAVEN. Wit-messes:

F. W. VVINTERs, MARY E. CAHooN.

